The news led to calls from Serie A president Paolo Dal Pino for at least 1,000 fans to be allowed to attend league matches before the season ends in May.
Gravina said he was optimistic that fans would soon be allowed into stadiums after he had a meeting with the Undersecretary for Sport, Valentina Vezzali.
Abraham, 23, is Chelsea's top scorer this season with 12 goals in all competitions, but has found himself marginalised since the arrival of German coach Tuchel in January.
"I cannot make a decision on the personal goals of players," Tuchel told a news conference ahead of Saturday's Premier League game at Crystal Palace.
The Swede returned to his former club in January 2020 aged 38 and sparked a turnaround in form for the seven-time European champions, who have not won Serie A since 2011.
"Everyone knows him, his mentality - he's a winner," Bennacer told Reuters. "Maybe we didn't have this experience that he brought with him. It's good for us young players because we improved in this. Now we want to win like he wants to win.
"I'm sure that we will open the European Championship in Rome and that we will do it with a crowd in the stadium," Gravina told a news conference on Friday.
"I still don't know how many spectators there will be, but there will definitely be a crowd."
Loew is the current longest serving national team coach after taking the job in 2006 but the 61-year-old, who led Germany to the 2014 World Cup title, is ending his contract a year early.
"Will I be available for the German national team job in the summer? No," Klopp told reporters ahead of the second leg of their last-16 Champions League tie against RB Leipzig.
The 24-nation, month-long showpiece, a major revenue generator for the continent's soccer governing body UEFA and the national federations across Europe was postponed by 12 months.
We should not be dreaming," Blanc told Switzerland's 24 Heures newspaper. "In the best case it could be the second half of the year that we could lead a normal life again.